通知产生于______
A．辛亥革命前后 B．民国时期C．新中国成立以后 D．改革开放以后
参考答案：B
The older New England villages have changed relatively little_______a gas station or two in recent decades.[ ]
A. except for
B. except
C. in addition to
D. besides
隔绝式压缩氧自救器展开气囊，注意气囊（）扭折。
A.可以
B.不能
C.必须
D.应当
